Apparatus for violet ray treatment



March 25, 1952 c. G. FILZER APPARATUS FOR VIOLET RAY TREATMENT 3Sheets-Sheet 1 Filed May 18, 1949 Zhwentor u b mtomeg March 25, 19522,590,601

I APPARATUS FOR VIOLET RAY TREATMENT Filed May 18, 1949 3 Sheets-Sheet 2I 3nventor Gttomeg March 25, 1952 c. s. FILZER APPARATUS FOR VIOLET RAYTREATMENT 3 Sheets-Sheet 3 Filed May 18 1949 Zhwentor (Ittomeg PatentedMar. 25, 1952 UNITED STATES PATENT OFFICE 2,590,601 APPARATUS FO-RVIOLET RAY.TREAT:MENT Christian G; Filzer, Erie,- Pa; Ap lication May18, 1949, Serial N0. 94,028 1 cla m, (01. era-24s) This inventionisintended to improve the operation of generators for violet ray apparatuswhich ordinarily include a magnetic coil and a condenser, producing acurrent which is fed through a resonance coil to a violet raytube.

In a preferred form, the condenseris enclosed in a casing overhung fromthe coil enclosing casing. A blast of cooling air is discharged to thecoil casing and escapes through openings directed into the condensercasing. The condenser casing has a removable cover through which thecondenser can be changed. Further objects and advantages appear in thespecification and claims.

In-the drawings, Fig. l is a side elevation of the-current generator;Fig. 2 is an end elevation with the cover for the condenser caseremoved; Fig. 3 is an end view of the cover for the condenser case; Fig.4 is a top plan view, partly broken away; Fig. 5 is a section throughthe motor and cooling fans; and Fig. 6 is an end view of the motor.

In the drawings, I and 2 indicate front and back plates connected byfour rods 3 forming a frame which telescopes into a case 4. Adjacent theblack plate 2 is a support 5 for the rear end of a magnetic coil 6. Asimilar support I carries the front end of the coil. The supports 5 andI are carried by the rods 3. Journaled in the front wall I is a knob 8connected through a block 9 of insulating material to an adjusting screwID for a vibrator l l. The coil is energized by a power line l2, l3,line l2 being connected to a brush l4 making contact with a collector [5carried by the adjusting screw I0. When the adjusting screw I isproperly adjusted a contact H at the inner end of the adjusting screwlocates the vibrator H with respect to the pole piece I! of the magneticcoil so that the vibrator makes and breaks the circuit through itscontact I8 and the contact Hi. When the contacts l6 and I8 are inengagement, the circuit from the power line extends from line l2 throughbrush l4, collector 15, contacts 16 and I8, to the vibrator H and fromthe vibrator H through line l9 to a terminal 20 connected to a condenser20a and to a lead 2| connected to the magnetic coil. From the other sideof the line l3 the circuit extends through a lead 22 connected to aterminal 23 connected to the other side of the condenser and through alead 24 to a resonance coil 25 connected through a lead 26 to the otherside of the coil 6. The resonance coil 25 feeds a violet ray tube 21.When the circuit to the contacts l6 and I8 is broken, the power line l2.I3 is disconnected and the resonance coil 25 is connected across themagnetic coil 6 and the condenser 29a in parallel.

On the top wall of the case is mounted a standard 21a carrying a rockshaft 28 having an arm 29 fixed thereto which engages a plunger 30operating a. switch 3| in circuit with leads 32 and 33. Thereis amechanical connection between the block 9 of insulating material and therock shaft so that as the knob 8 is adjusted to cause operation of thevibrator il, the switch 3| is closed completing a circuit between theleads 32 and 33. The switch 31 and the leads 32 and 33 are in the powercircuit to an electric motor 34 having a paddle wheel fan 35 on itsshaft 36 which draws air into intake opening 31 and discharges air underpressure through a nozzle 38 mounted on and discharging through the topwall of the case 4. The nozzle 38 serves both to direct air into thecase 4 and to support the motor. The construction of the switch 3|, themechanical connection between the block 9 and the rock shaft 28, and thepower circuit to the motor 34 are more completely illustrated in myPatent No. 2,323,529.

Projecting from the rear wall 2 are spaced tubular metallic studs 39 and40 respectively lined with sleeves 4| and 42 of insulating material. Ametallic rod 43 associated with the terminal 20 extends through thesleeve 4| into a metal case 44 carried on the projecting ends of thestuds 39 and 40. A metal rod 45 associated with the terminal 22 extendsthrough the sleeve 42 into the case 44. The rods 43 and 45 respectivelyterminate within the case 44 in binding posts 46 and 41. The bindingpost 46 is connected by a lead 48 to a clamp 49. Binding post 41 isconnected by a lead 50 to a clamp 5|. The clamp 49 and 5| have screws 52and 53 which press the clamps against terminals 54 and 55 of thecondenser 20a. In case the condenser has round leads instead of the flatleads 54 and 55 illustrated, the screws 52 and 53 may serve as terminalscrews around which the respective round condenser leads may be wrapped.The condenser is supported in the case 44 between blocks 56 and 51 ofinsulating material having mating recesses 59 receiving the condenser.The block 56 fits against the back wall of the case and the block 51 isclamped against the block 56 by shoulder screws 59. The shoulder screwshave threaded ends 69 which project through a cover plate 6|. The coveris held in place by nuts 62 threaded on the projecting end 60 of theshoulder screws 59.

The cooling air discharged into the case 4 during the operation of thevibrator flows out through openings 63 in the rear wall 2. The amount ofair discharged through these openings is controlled by a circular plate64 pivoted on a bolt 65 which both serves as a pivot and to hold theplate 64 against the outer face of the rear wall 2. The plate 64 hasopenings 66 which can be moved from the position illustrated in whichthey register with the openings 63 to a position in which the openings63 are completely blocked by the plate 64. This'permits complete controlover the quantity of cooling air discharged from the case 4. The airdischarged through the openings 63 flows across the intervening spaceprovided by the studs 39 and 40 and enters openings 61 in the rear wall68 of the condenser case. This cooling air flows over the condenser andout through perforations 69 in the cover plate 6| for the condensercase. During the operation-of the .generator considerable heat iscreated which must be dissipated to prevent overheating. By having themagnetic coil and the condenser'in separate cases with an arrangementfor controlling the flow of cooling air localized overheating of theapparatus is prevented.

' Mounting the condenser in a separate case with an easily accessiblecover permitting access to the interior of the case permits easychanging or renewal of the condenser. The construction is such that theoperator is protected against v ing air enters through openings 10,flows over themotor. and is discharged through openings H 4 by a fan 12on the motor shaft 36. The fan cooling the current generator is at oneend of the motor and the fan 12 cooling the motor is at the other end.

The motor bearings 13 have lateral oil passages 14 extending intoupright oil ducts 15 having upper ends 16 accessible from the top of themotor.

What I claim as new is:

In an induction coil type of current generator designed for supplyingviolet ray apparatus and the like, the current generator including amagnetic coil and a condenser, a case enclosing the magnetic coil,hollow studs projecting from a wall of the case, a condenser enclo 'ngcase carried by the projecting ends of the st ds, leads for thecondenser extending through he studs, a motor driven fan energizedduring e operation of the current generator carried by and for blowingcooling air into the coil enclosing case, an air outlet in said wall,and an air inlet to the condenser enclosing case aligned with and facinginto the air stream discharged from said outlet, the inlet to thecondenser coil being spaced from the outlet from the coil case wherebythe cooling air discharged from the coil case flows across theintervening space.

CHRISTIAN G. FILZER.

REFERENCES CITED The following references are of record in the NumberName Date Filzer Q July 6, 1943

